Structurally Various Sorbicillinoids From an Endophytic Fungus SS-g13.

Three new sorbicillinoids, including trimer trisorbicillinone E (), acremosorbicillinoids A and B ( and ), and a new alkaloid acremokaloid A (), and a new natural product 2,3-acetyl-β-methyltryptophan (), were isolated from an endophytic fungus SS-g13, which is found in plant root. In addition, eight known sorbicillinoids () were also obtained. The new compound structures were established using NMR, HRESIMS spectra, and reported spectroscopic data.